Sprinkler



July 9, 1935. J. ERICKSON ET AL SPRINKLER Filed Dec. 1, 1953 PatentedJuly 9, 1935 l 2. 9615. SPRINKLER Application December 1, 1933.,SerialNo. 700,490

1 Claim.

Our invention relates to improvements in lawn sprinklers and the mainobject is to provide a novel and simple form of sprinkler head readilyattachable to a garden hose or automatic sprinkler and which'will throwa square spray or sheet of water covering a square area of groundsurrounding the sprinkler.

Another object is to provide a sprinkler which may be readily adjustedto vary the density of the spray and the distance to which it is thrown.

A further object is to provide a spray head including a body portion forreceiving the water and which terminates in a depressed bowl shapedwater guide at one end in which a spray nozzle is seated havingapertures to release the water and on which an adjusting cap is threadedto vary the area of the apertures exposed.

With these and other objects in view the invention resides in the novelconstruction and arrangement of parts as hereinafter set forth andclaimed, reference being had to the accompany ing drawing wherein:

Figure l is a side view of our sprinkler.

Figure 2 is an end view.

Figure 3 is a plan view. V

Figure 4 is an enlarged section along the line 4- 5 in Figure 2.

Figure 5 is a detail cross section along the line 5-5 in Figure 4.

Figure 6 is a detached side elevation of the spray nozzle alone.

Figure 7 is a side elevation of a modified form of sprinkler suitablefor attachment to a conventional automatic sprinkler.

Referring now with more particularity to the drawing our inventioncomprises a body portion or head I having a projecting fiat mountingfoot or flange 2 pierced with screw holes 3 by which it may be anchoredto any supporting surface. In one end the body I has a tapped socket 4adapted to receive the end of the hose A which bears against a rubbergasket or washer 5 to provide a water tight joint at this point. Thesocket 4 communicates at its inner end with a passage or bore 6 ofsmaller diameter extended into the body i for some distance and thenturned upwardly and emerging from the topthereof centrally through aboss i formed on the top and inner end of said body. This boss has a cupor bowl shaped depression 8 concentric with the opening of the bore 6and the upstanding walls or margins 9 thus formed are rounded off infour equal lips, wings or tongues as indicated at H). The upper mouth ofthe bore 6 is tapped as at I l for some distance down into the bore toreceive a tubular spray nozzle or sleeve l2 complementarily threadedadjacent its lower end at l3. Just above these threads 13 said nozzlehas four diametrically opposed and equally spaced spray openings l4 andwhen the nozzle is screwed down into the bore 6 it may be adjusted sothat any desired areaof these openings will be exposed above thedepression 8 as will be understood in Figure 4, the openings beingfinally located in alignment with the centers of the lips I!) as shown.Screw driver kerfs iii are provided in the top of the nozzle tofacilitate its adjustment.

The nozzle I2 is also threaded at its upper end at 15 above the openingsHi whereby to receive a spray regulating cap I! tapped within its tubu-15 lar wall l8 and having a closed end is with screw driver kerf andsmall vent apertures 2|. The threads l6 are preferably of extended orprojecting form and the cap I! is of such length that it may be turneddown over the nozzle l2 far enough that the lower margin of its wall 18will project over and obstruct any desired part of the openings 14 alsoas shown in Figure 4.

From the foregoing it will be apparent that water entering the bore 6under pressure will emerge from the nozzle openings M in the form orfourfanshaped sprays deflected upwardly and outwardly by the roundedlips l0 and finally falling to the ground along the four sides of thesquare defined as with the spray nozzle as its center. By varying theadjustment of the cap I! more or less of the openings l4 may be openedwhereby to vary the density of the spray and the area covered thereby aswill be understood. A fine vertical spray will also emerge from each ofthe vents 2! in the cap to cover the groundimmediately around the spraynozzle. The lower margin of the cap I! is preferably beveled off asindicated at 22 so as not to deflect the spray emerging from theopenings I4. 40

In Figure 1 a modification of our invention is shown particularlyadapted for mounting on existing 1 conventional forms of automaticsprinklers, this modification including a straight tubular body portionla having a socket id to fit on the base (not shown) of the sprinklerand having the assembly of lips Illa, cap Ila, passage 6a and spraynozzle (not shown) at its upper end exactly as hereinbefore fully setforth. The operation and adjustment is of course the same. The bodyportion has wrench fiats 23 to facilitate its mounting on the sprinklerand the body may vary in length, diameter and size of socket 411. to fitany desired supporting element or sprinkler.

While we have herein set forth a certain preferred manner and manner ofassembling the elements of our invention it is understood that we mayvary from the same in minor structural details so as best to provide apractical device for the purposes intended, not departing from thespirit of the invention and within the scope of the appended claim.

We claim:

In a device of the kind described, a body portion for positioning uponthe ground, the body having an angular water-way therethru with onemouth thereof directed upwardly when the body portion is operativelypositioned on the ground, this mouth being surrounded by a. bowl shapeddepression the up-standing outer margins thereof being divided into fourco-equal arcuate lips, the inner wall of the said mouth being tapped,

a tubular spray nozzle threaded exteriorly at each end and threadedlyengaging at one end the said upper mouth of the water way of the bodyportion, the nozzle being pierced by four spray openings equi-spacedtherearound in approximate alignment with the bottom of the bowl shapeddepression, and a tubular spray regulating cap closed at itspredetermined outer end and interiorly threaded at the opposite end andthereby threadedly mounted over the upper end of the nozzle, the capbeing so dimensioned that it may be turned down over the said sprayopenings of the nozzle for regulating the flow of water therethrough,and means for receiving a tool for adjusting both the said nozzle andthe regulating cap.

' JOHN ERICKSON.

OLOF M. LILLIEQUIST.

